org.hsqldb.navigator

Class RowSetNavigatorData

java.lang.Object

org.hsqldb.navigator.RowSetNavigator

org.hsqldb.navigator.RowSetNavigatorData

All Implemented Interfaces:

java.util.Comparator, RangeIterator, RowIterator

Direct Known Subclasses:

RowSetNavigatorDataTable

public class RowSetNavigatorData
extends RowSetNavigator
implements java.util.Comparator

Implementation of RowSetNavigator for result sets.

Since:

1.9.0

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.Object[][]	emptyTable

Constructor Summary

Constructors

Constructor and Description
RowSetNavigatorData(Session session, QueryExpression queryExpression)
RowSetNavigatorData(Session session, QuerySpecification select)
RowSetNavigatorData(Session session, RowSetNavigator navigator)

Method Summary

Modifier and Type	Method and Description
boolean	absolute(int position) Uses similar semantics to java.sql.ResultSet except this is 0 based.
void	add(java.lang.Object[] data) Add data to the end
boolean	addRow(Row row) Add row to the end
void	clear() Clear the contents
int	compare(java.lang.Object a, java.lang.Object b)
void	copy(RowIterator other, int[] rightColumnIndexes)
void	except(Session session, RowSetNavigatorData other)
void	exceptAll(Session session, RowSetNavigatorData other)
java.lang.Object[]	getCurrent() Returns the current row object.
Row	getCurrentRow()
java.lang.Object[]	getData(long rowId)
java.lang.Object[]	getGroupData(java.lang.Object[] data) Special case for isSimpleAggregate cannot use index lookup.
java.lang.Object[]	getNextRowData()
boolean	hasUniqueNotNullRows(Session session)
void	intersect(Session session, RowSetNavigatorData other)
void	intersectAll(Session session, RowSetNavigatorData other)
boolean	isMemory()
boolean	next()
void	read(RowInputInterface in, ResultMetaData meta)
void	release() Remove any resourses and invalidate
void	removeCurrent() Remove current row
void	removeDuplicates(Session session)
void	reset() Reset to initial state
void	sortFull(Session session)
void	sortOrder(Session session)
void	sortOrderUnion(Session session, SortAndSlice sortAndSlice)
void	trim(int limitstart, int limitcount)
void	union(Session session, RowSetNavigatorData other)
void	unionAll(Session session, RowSetNavigatorData other)
void	update(java.lang.Object[] oldData, java.lang.Object[] newData)
void	write(RowOutputInterface out, ResultMetaData meta)

Methods inherited from class org.hsqldb.navigator.RowSetNavigator

afterLast, beforeFirst, first, getCurrent, getId, getNext, getNextRow, getRangePosition, getRowid, getRowId, getRowidObject, getRowNumber, getSession, getSize, hasNext, isAfterLast, isBeforeFirst, isEmpty, isFirst, isLast, last, previous, readSimple, relative, setCurrent, setId, setRowColumns, setSession, writeSimple

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.Comparator

comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Field Detail

emptyTable

public static final java.lang.Object[][] emptyTable

Constructor Detail

RowSetNavigatorData

public RowSetNavigatorData(Session session,
                           QuerySpecification select)

RowSetNavigatorData

public RowSetNavigatorData(Session session,
                           QueryExpression queryExpression)

RowSetNavigatorData

public RowSetNavigatorData(Session session,
                           RowSetNavigator navigator)

Method Detail

sortFull

public void sortFull(Session session)

sortOrder

public void sortOrder(Session session)

sortOrderUnion

public void sortOrderUnion(Session session,
                           SortAndSlice sortAndSlice)

add

public void add(java.lang.Object[] data)

Description copied from class: RowSetNavigator

Add data to the end

Specified by:

add in class RowSetNavigator

addRow

public boolean addRow(Row row)

Description copied from class: RowSetNavigator

Add row to the end

Specified by:

addRow in class RowSetNavigator

update

public void update(java.lang.Object[] oldData,
                   java.lang.Object[] newData)

release

public void release()

Description copied from class: RowSetNavigator

Remove any resourses and invalidate

Specified by:

release in interface RowIterator

Specified by:

release in class RowSetNavigator

clear

public void clear()

Description copied from class: RowSetNavigator

Clear the contents

Specified by:

clear in class RowSetNavigator

absolute

public boolean absolute(int position)

Description copied from class: RowSetNavigator

Uses similar semantics to java.sql.ResultSet except this is 0 based. When position is 0 or positive, it is from the start; when negative, it is from end

Overrides:

absolute in class RowSetNavigator

getCurrent

public java.lang.Object[] getCurrent()

Description copied from class: RowSetNavigator

Returns the current row object. Type of object is implementation defined.

Specified by:

getCurrent in interface RangeIterator

Specified by:

getCurrent in class RowSetNavigator

getCurrentRow

public Row getCurrentRow()

Specified by:

getCurrentRow in interface RangeIterator

Specified by:

getCurrentRow in class RowSetNavigator

getNextRowData

public java.lang.Object[] getNextRowData()

next

public boolean next()

Specified by:

next in interface RangeIterator

Overrides:

next in class RowSetNavigator

removeCurrent

public void removeCurrent()

Description copied from class: RowSetNavigator

Remove current row

Specified by:

removeCurrent in interface RowIterator

Specified by:

removeCurrent in class RowSetNavigator

reset

public void reset()

Description copied from class: RowSetNavigator

Reset to initial state

Specified by:

reset in interface RangeIterator

Overrides:

reset in class RowSetNavigator

isMemory

public boolean isMemory()

Overrides:

isMemory in class RowSetNavigator

read

public void read(RowInputInterface in,
                 ResultMetaData meta)
          throws java.io.IOException

Specified by:

read in class RowSetNavigator

Throws:

java.io.IOException

write

public void write(RowOutputInterface out,
                  ResultMetaData meta)
           throws java.io.IOException

Specified by:

write in class RowSetNavigator

Throws:

java.io.IOException

getData

public java.lang.Object[] getData(long rowId)

copy

public void copy(RowIterator other,
                 int[] rightColumnIndexes)

union

public void union(Session session,
                  RowSetNavigatorData other)

unionAll

public void unionAll(Session session,
                     RowSetNavigatorData other)

intersect

public void intersect(Session session,
                      RowSetNavigatorData other)

intersectAll

public void intersectAll(Session session,
                         RowSetNavigatorData other)

except

public void except(Session session,
                   RowSetNavigatorData other)

exceptAll

public void exceptAll(Session session,
                      RowSetNavigatorData other)

hasUniqueNotNullRows

public boolean hasUniqueNotNullRows(Session session)

removeDuplicates

public void removeDuplicates(Session session)

trim

public void trim(int limitstart,
                 int limitcount)

getGroupData

public java.lang.Object[] getGroupData(java.lang.Object[] data)

Special case for isSimpleAggregate cannot use index lookup.

compare

public int compare(java.lang.Object a,
                   java.lang.Object b)

Specified by:

compare in interface java.util.Comparator